On Sat, May 12, 2012 at 01:38:16PM -0700, chuck.01 wrote: > Hi, > How can I round up and down to the nearest hundredth > > example: > > x <- 0.18 > how do I round down to 0.15? > how do I round down to 0.20?
Hi. Rounding to 0.15 is not to a nearest hundredth, but to a nearest multiple of 0.05. Rounding down and up to a nearest multiple of a unit u can be done as follows x <- 0.18 u <- 0.05 floor(x/u)*u # [1] 0.15 ceiling(x/u)*u # [1] 0.2 Hope this helps. Petr Savicky. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
